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Finding the Fourth Proportional to 71,452.08, 98,606.16 and 39,623.94

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Solution

The fourth proportional to 71,452.08, 98,606.16 and 39,623.94 is: 54,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,452.08 : 98,606.16 = 39,623.94 : x
  2. Step 2: Convert to fraction form
    71,452.08/98,606.16 = 39,623.94/x
  3. Step 3: Cross multiply
    71,452.08x = 98,606.16 × 39,623.94
  4. Step 4: Simplify right side
    71,452.08x = 3,907,164,567.47
  5. Step 5: Solve for x
    x = 3,907,164,567.47/71,452.08
  6. Step 6: Final answer
    x = 54,682.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.